/* BondGuru — base reset and tokens */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.85rem + 0.15vw, 0.9375rem);
  --text-base: clamp(1rem, 0.97rem + 0.2vw, 1.0625rem);
  --text-md: clamp(1.125rem, 1.08rem + 0.25vw, 1.25rem);
  --text-lg: clamp(1.375rem, 1.25rem + 0.6vw, 1.75rem);
  --text-xl: clamp(1.75rem, 1.5rem + 1.2vw, 2.5rem);
  --text-2xl: clamp(2.25rem, 1.8rem + 2.2vw, 3.75rem);
  --text-hero: clamp(2.5rem, 1.9rem + 3.2vw, 4.75rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 22px;
  --radius-full: 999px;

  --font-display: "Newsreader", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 160ms;
  --dur-base: 320ms;

  --container: 1160px;
  --measure: 66ch;

  /* Light — cream paper, navy ink, gold accent */
  --color-bg: oklch(95.6% 0.016 84);
  --color-surface: oklch(97.6% 0.01 84);
  --color-surface-offset: oklch(92.4% 0.02 82);
  --color-text: oklch(24% 0.05 258);
  --color-text-muted: oklch(44% 0.035 255);
  --color-text-faint: oklch(62% 0.02 250);
  --color-border: oklch(30% 0.05 255 / 0.14);
  --color-border-strong: oklch(30% 0.05 255 / 0.28);
  --color-navy: oklch(31% 0.085 258);
  --color-navy-deep: oklch(24% 0.07 258);
  --color-gold: oklch(70% 0.11 82);
  --color-gold-text: oklch(46% 0.09 80);
  --color-btn-bg: var(--color-navy);
  --color-btn-text: oklch(97% 0.012 84);
  --color-btn-hover: var(--color-navy-deep);
  --color-panel-bg: oklch(26% 0.07 258);
  --color-panel-text: oklch(95% 0.014 84);
  --color-panel-muted: oklch(80% 0.02 84);
  --shadow-sm: 0 1px 2px oklch(28% 0.05 255 / 0.08), 0 2px 8px oklch(28% 0.05 255 / 0.06);
  --shadow-md: 0 6px 24px oklch(28% 0.05 255 / 0.12), 0 1px 3px oklch(28% 0.05 255 / 0.08);
  color-scheme: light;
}

[data-theme="dark"] {
  --color-bg: oklch(17% 0.035 258);
  --color-surface: oklch(21% 0.038 258);
  --color-surface-offset: oklch(26% 0.04 258);
  --color-text: oklch(93% 0.014 84);
  --color-text-muted: oklch(76% 0.016 80);
  --color-text-faint: oklch(58% 0.015 250);
  --color-border: oklch(95% 0.01 84 / 0.12);
  --color-border-strong: oklch(95% 0.01 84 / 0.26);
  --color-navy: oklch(31% 0.085 258);
  --color-navy-deep: oklch(24% 0.07 258);
  --color-gold: oklch(76% 0.11 84);
  --color-gold-text: oklch(80% 0.1 84);
  --color-btn-bg: oklch(93% 0.014 84);
  --color-btn-text: oklch(22% 0.06 258);
  --color-btn-hover: oklch(99% 0.006 84);
  --color-panel-bg: oklch(13% 0.03 258);
  --color-panel-text: oklch(94% 0.014 84);
  --color-panel-muted: oklch(74% 0.016 80);
  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.4), 0 2px 8px oklch(0% 0 0 / 0.3);
  --shadow-md: 0 6px 24px oklch(0% 0 0 / 0.45), 0 1px 3px oklch(0% 0 0 / 0.4);
  color-scheme: dark;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1;
}

img,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
  background: var(--color-surface-offset);
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
}

ul,
ol {
  padding-left: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--color-gold);
  color: var(--color-navy-deep);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}